Have you ever heard of Flash Cookies/Locat Shared Object? Flash cookies are cookie-like data, stored on the user’s computer. These are similar to http-cookies but can’t locate them on web browser. Flash Cookies can store 100KiloByte of information by default, but settings can be made to store unlimited amount of data (Limited by your HDD).
Local Shared Objects are not temporary files, but they stay until deleted manually. But there is an option to opt-out by disabling them on the Adobe website. Also Firefox add-ons like BetterPrivacy can help you with LSO. Here is how to disable the LSO storage on your computer.
- Visit Adobe Flash setting manager website by clicking here
- Go to Global Storage Settings tab which is second one
- You will see setting manager something like below

- You can change the slider to None and un-check both the settings, as shown below, but be careful, you may not be able to view flash content again in that browser.

